Texas Plumbing Master Exam questions n complete
solutions 2025/2026 updated
1. air gap the vertical distance between the opening of the water
supply and the flood level rim of a receptacle
2. branch any part of the piping system other than a main, riser or
stack
3. Branch vent A vent connecting one or more individual vents with a vent
stack or stack vent
4. Building Drain is the lowest part of the drainage system which receives
waste from
soil and waste pipes and connects to the building sewer
5. Building sewer is drainage piping that conveys waste from the building
drain to
the public sewer or disposal system
6. Cleanout Access opening in the drainage system used to remove
obstruc- tions
7. Combination fixture Two or three compartment sink drained by a continuous
waste
connected to one trap
8. Combination Waste A horizontal wet venting system for sinks and floor drains
and Vent system
9. Common Vent A single vent serving as the vent for two fixture drains
10. critical level is an elevation mark on a vacuum breaker setting the
minimum elevation the device can be installed above the
flood level rim of a fixture
11. cross-connection is an actual or potential tie between potable water and any
source
of pollution or contamination
1/
21
, Texas Plumbing Master Exam questions n complete
solutions 2025/2026 updated
12. Developed Length A measurement of piping taken along the centerline of pipe
and
fittings
2/
21
, Texas Plumbing Master Exam questions n complete
solutions 2025/2026 updated
13. drain Any pipe that conveys waste water in the drainage system
14. Indirect Waste Is waste pipe that drains through an air gap to the
drainage system
15. Individual vent A pipe installed to vent one fixture trap. It may connect to
the vent
system above the fixture or terminate in the open air.
16. main Is the primary or principal pipe to which branches are
connected
17. potable water Is water that is suflciently free of impurities to meet public
health
standards
18. Rough in Parts of the plumbing system that are installed prior to the
instal- lation of fixtures.
19. Soil Pipe Is drain pipe conveying sewage containing fecal matter
20. Stack Vent The extension of a soil or waste stack above the highest
fixture served
21. trap Is a device that provides a water seal to prevent the
passage of sewer gas and allow the passage of waste
22. Trap seal distance from weir to top of the dip of the trap
23. Vacuum Breaker is a backflow preventer that allows air to a vacuum being
pulled on
a system
24. vent stack A vertical vent pipe to provide circulation of air to and
from the drainage system
3/
21
solutions 2025/2026 updated
1. air gap the vertical distance between the opening of the water
supply and the flood level rim of a receptacle
2. branch any part of the piping system other than a main, riser or
stack
3. Branch vent A vent connecting one or more individual vents with a vent
stack or stack vent
4. Building Drain is the lowest part of the drainage system which receives
waste from
soil and waste pipes and connects to the building sewer
5. Building sewer is drainage piping that conveys waste from the building
drain to
the public sewer or disposal system
6. Cleanout Access opening in the drainage system used to remove
obstruc- tions
7. Combination fixture Two or three compartment sink drained by a continuous
waste
connected to one trap
8. Combination Waste A horizontal wet venting system for sinks and floor drains
and Vent system
9. Common Vent A single vent serving as the vent for two fixture drains
10. critical level is an elevation mark on a vacuum breaker setting the
minimum elevation the device can be installed above the
flood level rim of a fixture
11. cross-connection is an actual or potential tie between potable water and any
source
of pollution or contamination
1/
21
, Texas Plumbing Master Exam questions n complete
solutions 2025/2026 updated
12. Developed Length A measurement of piping taken along the centerline of pipe
and
fittings
2/
21
, Texas Plumbing Master Exam questions n complete
solutions 2025/2026 updated
13. drain Any pipe that conveys waste water in the drainage system
14. Indirect Waste Is waste pipe that drains through an air gap to the
drainage system
15. Individual vent A pipe installed to vent one fixture trap. It may connect to
the vent
system above the fixture or terminate in the open air.
16. main Is the primary or principal pipe to which branches are
connected
17. potable water Is water that is suflciently free of impurities to meet public
health
standards
18. Rough in Parts of the plumbing system that are installed prior to the
instal- lation of fixtures.
19. Soil Pipe Is drain pipe conveying sewage containing fecal matter
20. Stack Vent The extension of a soil or waste stack above the highest
fixture served
21. trap Is a device that provides a water seal to prevent the
passage of sewer gas and allow the passage of waste
22. Trap seal distance from weir to top of the dip of the trap
23. Vacuum Breaker is a backflow preventer that allows air to a vacuum being
pulled on
a system
24. vent stack A vertical vent pipe to provide circulation of air to and
from the drainage system
3/
21
